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rockyridgefarm
Elite Member
Part number was plainly printed on the side. Quick Ducking found the unit and $18.95 has it on the way
Instrument cluster repair - Electronics tech
- Thread starter rockyridgefarm
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Kyle_in_Tex
Super Star Member
That's awesome detective work Mike. Post a link to the lcd if you can.
I wonder if I could fix the LCD on our 5420 tractor? It has been out for years. Probably put over 200 hours on it since it's been out.
I wonder if I could fix the LCD on our 5420 tractor? It has been out for years. Probably put over 200 hours on it since it's been out.
Last edited:
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rockyridgefarm
Elite Member
OP
rockyridgefarm
Elite Member
Could be the same or similar. I would open the cluster and verify before ordering one.
OP
rockyridgefarm
Elite Member
How the LCD should look Hope to install tonight.
OP
rockyridgefarm
Elite Member
the Saga continues!
there are 12 years difference in the date codes on the hour meters. the new LCD's won't display correctly.
Back to the drawing board.
there are 12 years difference in the date codes on the hour meters. the new LCD's won't display correctly.
Back to the drawing board.
Kyle_in_Tex
Super Star Member
Oh man, I didn't want to hear that.
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rockyridgefarm
Elite Member
Well, I am not giving up.
Possible solutions:
Find a cluster of same age just for the LCD. (Not likely) $400
The OEM makes a programmable timer. (Problem is that it is in a sealed case and might not fit cluster) $20
Program the same model timer that I already purchased. (Takes a while!). $28 already spent.
I am proceeding with the last as I research the others.
Possible solutions:
Find a cluster of same age just for the LCD. (Not likely) $400
The OEM makes a programmable timer. (Problem is that it is in a sealed case and might not fit cluster) $20
Program the same model timer that I already purchased. (Takes a while!). $28 already spent.
I am proceeding with the last as I research the others.
texasranger556
Platinum Member
Help me understand what you've found out thus far. Does the LCD screen have a driver chip built right onto the back side of it? Or is that the controller board in your pic and it also tracks hours?
Does the new LCD display anything at all? For a college project years ago I had to reverse engineer a graphics LCD based on a Hitachi controller. I beat my head against the wall for several days until I figured out one of the voltage inputs needed to be driven negative to have sufficient contrast. Until then I was drawing characters and graphics just fine but couldn't actually see anything.
Does the new LCD display anything at all? For a college project years ago I had to reverse engineer a graphics LCD based on a Hitachi controller. I beat my head against the wall for several days until I figured out one of the voltage inputs needed to be driven negative to have sufficient contrast. Until then I was drawing characters and graphics just fine but couldn't actually see anything.
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rockyridgefarm
Elite Member
the display appears to be passive and driven by the timer module to which it is sandwiched.
The new display set on the old board shows ' 1E 8.8 with no hourglass on the far left.
the characters are of course wrong. shouldn't be an 'E' - i have over 500 hours, and the last 2 '8's are even iffy.
The new display set on the old board shows ' 1E 8.8 with no hourglass on the far left.
the characters are of course wrong. shouldn't be an 'E' - i have over 500 hours, and the last 2 '8's are even iffy.
